Terrence Hardiman was an actor better known as the evil headmaster in the BBC children series, The Demon Headmaster.

Filmography

• The Demon Headmaster — Old Demon Headmaster
• 2018Ein Sommer in Oxford — John Addington
• Genius — Professor Griesel
• Agatha Raisin — Mr. Green
• The Crown — Doctor Evans
• 2014Mr. Turner — Gallery Visitor
• 2009Into the Storm — Captain Pim
• Wallander — Hakan von Enke
• 2007Fishtales — Professor Ratcher
• Doctor Who — Hawthorne
• The Worst Week of My Life — Gerard
• The Royal — Dr. Sedgewick
• 2000Distant Shadow — The Svit
• Urban Gothic — Severin
• 1999The Adventures of Young Indiana Jones: Daredevils of the Desert — Fitzgerald
• The Worst Witch — Grand Wizard Egbert Hellibore
• Verdict — James MacKenzie
• Crime Traveller
• Jonathan Creek — Andre Masson
• Midsomer Murders — Dr. James Lavery
• 1996Circles of Deceit: Kalon — Military Officer
• The Demon Headmaster — The Demon Headmaster
• 1996The Moonstone — Colonel Sir John Herncastle
• 1995The Virgin in the Ice — Abbot Radulfus
• Cadfael — Abbot Radulfus
• 1994Monk's Hood
• 1993Death Train — German Commander
• Goodnight Sweetheart — Wilson
• Magic Grandad — Governor of the School system
• Heartbeat — John Upton
• 1991GBH 2: Lethal Impact — Bill Donovan
• Prime Suspect — Commander Chiswick
• The Brittas Empire — Prosecutor
• Keeping Up Appearances — Eric
• Agatha Christie's Poirot — John Siddaway
• Surgical Spirit — Douglas Endicott
• Hannay
• Wish Me Luck — General Stuckler
• Dispatches — David Gore-Booth
• Inspector Morse — Clive Palmer
• Miss Marple: Sleeping Murder — Walter Fane
• The Ruth Rendell Mysteries — Solicitor
• Casualty — Carlisle
• 1986God's Outlaw — Thomas Cromwell
• Home to Roost — Doctor
• 1985Mask of Murder — Dr. Paul Crossland
• Fresh Fields — Mr. Frobisher
• The Bill
• 1983Sahara — Browne
• Skorpion — Chief Supt. Franks
• Storyboard — Charles Carmichael
• 1982Gandhi — Ramsay MacDonald
• Bergerac — Nigel Ripley
• 1981Loophole — David
• My Father's House — Alec Blake
• 1981The Bunker — Gen. Fegelein
• Juliet Bravo — Inspector Foster
• Lady Killers — Mr. Cecil Whitely, K.C.
• Minder — Dr. Hardman
• Rebecca — Frank Crawley
• The Diary of a Nobody — Charles Pooter
• The Serpent Son — Aegisthus
• Enemy at the Door — Hauptmann von Bulow
• BBC2 Play of the Week — Captain The Hon. Maurice Bourke
• 1977Blasphemy at the Old Bailey — John Smyth
• Secret Army — Major Hans Dietrich Reinhardt
• 1977The Sinking of the HMS Victoria — Captain The Hon. Maurice Bourke
• Wings — Major Lanchester
• 1976Practical Experience — Raymond
• Second Verdict — Dominic Mancini
• Angels
• Churchill's People — Richard Calle
• Playhouse — Raymond
• The Carnforth Practice — James Railton
• 1973The Death of Captain Doughty — Captain Doughty
• Colditz — Gestapo Officer Two
• Crown Court — Stephen Harvesty, Stephen Harvesty QC
• Dead of Night — Piers Wickett
• 1972Pope Joan — Cardinal Anastasius
• 1972Running Scared — Doctor
• Justice — Higson
• Softly Softly: Task Force — Insp. Armstrong
• Softly, Softly
• BBC Play of the Month
• Horizon — Trofim Lysenko
• Thursday Theatre — The Valet

Appearances as themselves (1)

• To Me... To You... — Himself